It looks like the gremlins has jumped onto page 41.
We all know that It is easier for a camel to pass through the eye of a needle than it is for a rich man to enter the kingdom of heaven, but no matter how hard we try M2.5 nuts will not fit onto M3 screws, nor will M3 screws go through 2.5 dia holes.
I'm sure I read somewhere that for the shutters to close properly one needs to file down the heads of the screws holding the hinges to the shutters and EP0403. It is not an easy thing to do.
I looked at the 'books' (Haynes manual and the Osprey book) and noticed that the external faces of the shutters showed that they were fastened by dome head rivets. Again the lightbulb went off.
I reversed the fit of M2.5 button screws so the heads were on the outside. The inner pairs of screws of the shutter hinges were shortened, (using a tough pair of wire cutters and a strong grip) and superglued into position.
The shutters now close fully and the outside appear to have rivets heads.
I also found I had to file off the Rad cap and a bit of fettling of EP0520's CSK screws to get the doors to open fully.
I'mm off to the Somme next week so will be away from finding problems (did I just hear Kian give a shout of Joy?

)